Synthesis and characterization of Fe55Co45 magnetic nanoparticles by polyol and green chemistry method

• Published in: Results in physics 2019-12, Vol.15, p.102785, Article 102785
• Main Authors: Julio Jimenez, Luisa Fernanda, Herrera Barros, Adriana, Caamaño De Ávila, Zulia Isabel
• Format: Article
• Language: English
• Subjects: Eco-friendly methods; Electron microcopy; Green chemistry; Iron alloys; Magnetic characterization; Polyol method
• ISSN: 2211-3797; 2211-3797
• DOI: 10.1016/j.rinp.2019.102785

•FeCo magnetic nanoparticles have attracted more attention because of their interesting soft magnetic properties.•The synthesis of a substituted ferrite nanoparticle based on Fe55Co45 was studied by using the polyol method and green chemistry method.•Phytochemical components from Mangifera Indica leaves extract were used for ecofriendly synthesis of magnetic nanoparticles based on FeCo.•Fe55Co45 nanoparticles synthesized by green chemistry displayed a saturation magnetization of 92.44 emu/ after 5 h of thermal treatment. In this work, Fe55Co45 magnetic nanoparticles were synthesized by the chemical polyol method and by the green chemistry method. These magnetic nanoparticles were characterized by X-ray diffraction, scanning electron microscopy, X-ray fluorescence, and vibrating-sample magnetometry. For the green chemistry methodology, we used the phytochemical components present in an aqueous extract of Mangifera Indica leaves. In spite of the fact that polyol method produced more quantity of samples at short times, Fe55Co45 nanoparticles synthesized via the green chemistry methodology had higher saturation magnetization values (92.44 emu/g) with crystallite sizes from 19.1 to 28. 6 nm, suggesting the potential of this benign route to obtain magnetic nanoparticles through an economical an easy way. The resulting nanoparticles may be used for drug delivery carriers and for water purification.